Frequently Asked Questions
The ATV71 has External Fault assigned to LI5. When active, LI5 trips the drive into External Fault, EPF1. When activating Fault Reset on LI4, the fault is not reset.
Altivar 61 ATV61 Altivar 71 ATV71
The fault reset needs to come from the assigned Command Channel.
In this case, Command Channel 1 was assigned to a Communications network. A Fault Reset needs to come from the Communications Network.
Fault reset by Logic Input is not possible unless the active command channel is Terminals.
Consider temporarily switching the Command Channel to Terminals and then close Logic Input assigned to Reset, or switch to HMI mode and use the local Stop/Reset button (push twice) to reset.
Alternatively see the recommendations from L3 attached.
ATV32 causes of an Output Phase Loss.
Altivar 32, ATV32
All serial numbers for Altivar 32, ATV32
Loss of phase/low current
OPF1 is the detection of the loss of one output phase between the drive and the motor.
OPF2 is the detection of the loss of all three phases between the drive and the motor.
- Confirm the motor settings are correctly entered into the drive Motor Control (DRC) menu
- Check the wiring connections between the drive and the motor. If there are any disconnects or junctions, check that the disconnect is closed and junction connections are secure.
- If the motor is undersized for the drive HP rating, the drive may trip on phase loss due to low current detection, causing the drive to believe a phase is lost.
- Confirm the drive is working properly by disconnecting the motor leads, setting Output Phase Loss (OPL) to No, run the drive and check for equal voltage output, phase to phase.
- If using an output contactor, set Output Phase Loss (OPL) to Output Cut (OAC)